CF 77 combines high thermal insulation, comfort and a pleasant design with maximum brightness. This folding doors system uses the least amount of space and offers both interior and exterior openings. Besides the standard folding elements, CF 77 has a distinct characteristic for the main door: the first wing is used as entrance door without affecting the rest of the wings.

CF 77 system is available with 4 sill types from the highest performance to embedded to match all comfort and design requirements. CF 77 system can be combined with CS systems for doors and curtain walls. Furthermore the CF 77 system is available in the Slim-Line (SL) version with a much thinner visible profile.